4.5 overall. Rechargeable. Water resistant. Impact resistant. Strobe. Weight: 2.8oz. LED with MaxVision Beam. Primary and tactical switch. Micro USB charging cord. Modes: High (650 lumens, 1.75h runtime), Medium (250 lumens, 2h runtime), Low (5 lumens, 30h runtime). LED fuel gauge. Melonite coated spring steel pocket clip for bezel up carry. Anodized aluminum head. Requires (1) Lithium battery (included). Polymer construction. Color: Black. Clam packed.